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Electrically driven transport of photoinduced hot carriers in carbon nanotube fibers

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Abstract

Hot carriers play a significant role in applications of photovoltaics, photodetection, and photocatalysis. However, effective methods for observing the ultrafast dynamic processes of hot carriers are concentrated on the time domain, on which it is difficult and complex to operate. We propose a novel, to the best of our knowledge, and creative strategy to convert the time-domain dynamic process into a spatially thermal redistribution in suspended carbon nanotube fibers. The large average free path of photoinduced hot holes ensures a prominent offset of temperature distribution. The experimental results confirm the theory about electrically driven transport of hot holes, which has rarely been reported.

© 2021 Optical Society of America

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Supplementary Material (1)

NameDescription
Supplement 1       Relationship between Raman shift of G peak and temperature, method for seeking peak location, and a complementary analysis about the theoretical model

Data Availability

Data underlying the results presented in this Letter are not publicly available at this time but may be obtained from the authors upon reasonable request.

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